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docs: add POST /api/html-import to API reference

Add POST /api/html-import — converts HTML to Tiptap JSON

Make all studio pages mobile responsive at ≤640px

Studio mobile responsive: fixed top header + bottom tab nav

Standardise wordmark to 14px font-sans 0.12em tracking across all navs

Standardise Superstack icon to 28×18 across studio and reader navs

Match mobile nav height to marketing nav (60px)

Show count in rounded badge on Follow All button

Rename button label to Follow All (N)

Add margin-right spacing between ✦ icon and button text

Pulsate ✦ icon on Follow All button

Make For You follow-all button a prominent callout with explanation

Recommendations engine + Follow All + login no-flash

Gate editor on tagline+description; hide empty category badge on discover

Category gate for editor, full email formatting, uncategorised pubs in discover

Always show code copy button (remove hover-only opacity)

Make tables more compact: reduce cell padding, align middle

Style code copy button in mint green

Add copy-to-clipboard button on code blocks in published posts

Run lowlight on published posts for syntax highlighting; wrap code blocks

Fix nodeToHtml to render tables, code block language, and mentions in published posts

Add table, syntax highlighting, and mention styles to published post view

Table cells right-aligned, table full width

Fix editor: image upload, table alignment, undo/redo, post mentions

Add image upload, tables, and syntax highlighting to post editor

Add api_token column migration to boot-time alter table list

Add API token management, reader improvements, and API playground

Improve reader UX: mobile layout, routing, and pub grid

Fix post nav arrows and back-to-top across pub and /read

Add post nav arrows, action bar, liked tab, and reader/pub style unification

Action bar: show at top (below meta) + bottom; improve copy toast

Add like, bookmark, and copy-link actions to post view

Add Changelog and API Docs helpful links to studio and reader sidebars

Fix analytics: compute live from real data instead of empty snapshots table

Fix subscriber search losing focus on each keypress

Store subscriber name from Substack import; resolve name server-side

Fix editor: title wraps on long text, image drag-and-drop into body

Fix ZIP parser to use central directory for correct comp/uncomp sizes

Overhaul Substack import to match real export structure; add subscriber import

Fix invalid JS syntax: curly apostrophe in string literal

Add Substack post archive import

Fix subscriber name column to use firstName + lastName from reader account

Add API nav link, subscriber name column, CSV export improvements, and mobile docs

Switch auth tokens from sessionStorage to localStorage for cross-tab persistence

UX polish: loading icons, footer, nav consistency, subscribe state, auto-login redirect

Public Discover page at /discover — no auth required

Replace Loading… text with on-brand animated loading mark

Track real email open rates via pixel tracking

Admin panel, email verification, and pricing controls

A lot shipped this week. The admin panel is live at /admin with full user, publication, and admin CRUD. Email verification is now required before account activation. All pricing rates (email, API, storage) are now configurable from the admin settings tab and reflected live on the marketing page.

• Admin panel with overview stats, user/publication/admin management
• Email verification flow with token-gated account activation
• Welcome email sent on first verification
• First name + last name fields on signup with validation
• Category selection enforced on publication setup
• Platform config table: email cost, API cost, storage cost all admin-editable
• Homepage pricing table and calculator update live from admin config
• Forgot password / reset password flow
• Reader-only accounts redirect to /read instead of /studio on login
• Writer notified by email when someone follows or subscribes
• Follow notification toggle in Studio settings

OG images, reader follows, and Railway persistence

Fixed blank OG images on social shares by bundling Inter, JetBrains Mono, and Playfair Display as TTF fonts for server-side SVG rendering. Reader follows now correctly create subscriber rows so writers see their audience. SQLite DB is now persisted on a Railway volume.

• OG images render correctly on WhatsApp, Twitter, LinkedIn
• Following a publication now appears in the writer's subscriber list
• Backfill script for existing followers
• Persistent SQLite via Railway volume at /data
• Writers auto-follow their own publication on creation

Reader network, thoughts, and recommendations

The reader layer is now live. Follow publications, bookmark posts, track your reading history, and discover writers through cross-publication recommendations. Thoughts (microblogging) land as a lightweight layer on top of posts.

• Follow / unfollow publications
• Bookmark posts and reading history
• Thoughts: short-form microblogging per publication
• Cross-publication recommendations with writer curation
• /read discovery feed with category filters

Stripe Connect, USDC payments, and subscriber billing

Writers can now connect Stripe and accept paid subscriptions. Native USDC support via Base network is live as an alternative to fiat. Monthly and annual pricing tiers with configurable trial days.

• Stripe Connect onboarding flow in Studio
• USDC wallet address field for stablecoin subscriptions
• Monthly / annual pricing with trial days
• Subscriber management: view, export CSV, manually add
• Free vs paid post visibility (paywall cliffs)

Post editor, email send, and analytics

The Studio editor is now functional end-to-end. Write a post, preview it, publish it, and send it to your subscriber list as an email newsletter. Basic open-rate analytics tracked per send.

• WYSIWYG post editor with rich text, images, embeds
• One-click email send to all subscribers
• Unsubscribe link automatically appended to all emails
• Per-post analytics: sent count, open rate
• Post scheduling (publish at future date)

Custom domains, SEO, and data exchange

Publications can now map to a custom domain with automated SSL via Railway. SEO settings (title templates, meta descriptions, GA4 ID) are configurable per publication. The data exchange module (Intent-Ad Network, AI Feed) is wired up with opt-in toggles.

• Custom domain with CNAME verification flow
• Per-publication SEO: title template, default meta, sitemap toggle
• Google Analytics 4 integration
• Intent-Ad Network toggle (waives hosting cost)
• AI Feed toggle with 30-day delay and 50/50 revenue split

Publication pages and the Studio shell

Public publication pages are live. Each writer gets a slug-based URL, an accent colour, a bio, and a post feed. The Studio dashboard shell is in place with sidebar navigation across posts, subscribers, analytics, and settings.

• Public publication page at superstack.cc/{slug}
• Accent colour, tagline, bio, category
• Studio sidebar: Posts, Subscribers, Analytics, Settings tabs
• Draft / live post status with preview

Auth, database, and API foundation

Core infrastructure is in place. Hono + SQLite on Railway. JWT-based auth for writers, readers, and admins as separate token classes. REST API skeleton with route-level middleware.

• Hono server with SQLite (better-sqlite3 + Drizzle ORM)
• JWT auth: writer tokens, reader tokens (r: prefix), admin tokens (admin: prefix)
• User + publication + reader schema
• Vite frontend build with multi-page entry points
• Railway deployment with environment variables

Day one: the idea ships

Superstack starts as a conviction: publishing infrastructure should be priced like infrastructure. Zero revenue share. Wholesale cost for the pipes. The homepage, the manifesto, and the calculator are the first things to exist.

• Marketing homepage with manifesto and revenue calculator
• Domain live at superstack.cc